hadoop-user mailing list archives

Re: Host NameNode, DataNode, JobTracker or TaskTracker on the same machine

Date

Thu, 14 Feb 2013 17:41:37 GMT

You may run out of memory,out of disk. If SNN is also running on the same machine then you
are totally screwed in case of any breakdown
shashwat shriparv <dwivedishashwat@gmail.com> wrote:
>If you are doing it for production all the process should be running on
>seperate machine as it will decrease the overload of the machine.
>
>
>
>∞
>Shashwat Shriparv
>
>
>
>On Thu, Feb 14, 2013 at 10:40 PM, Jeff LI <uniquejeff@gmail.com> wrote:
>
>> Hello,
>>
>> Is there a good reason that we should not host NameNode, DataNode,
>> JobTracker or TaskTracker services on the same machine?
>>
>> Not doing so is suggested here
>http://wiki.apache.org/hadoop/NameNode,
>> but I'd like to know the reasoning of this.
>>
>> Thanks
>>
>> Cheers
>>
>> Jeff
>>
>>
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